Seat for harrow-teeth



(No Model.)

0. E. BEMENT. SEAT FOR HAEROW TEETE.

Patented Sept. 3, 1889.

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UNITED STATES PATENT OFFICE.

CLARENCE E. BEh/IENT, OF LANSING, MICHIGAN.

SEAT FOR HARRO W-TEETH.

SPECIFICATION forming part of Letters Patent No. 410,141, datedSeptember 3, 1889.

Application filed March 5, 1889. Serial No. 301,864. (No model.)

To all whom it may concern.

Be-it known that I, CLARENCE E. BEMENT, a citizen of the United States,residing at Lansing, in the county of Ingham and State of Michigan, haveinvented certain new and useful Improvements in Seats for Harrow- Teeth;and I do hereby declare the following to be afull, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

This-invention has elation to seats for harrow-teeth, andmoreparticularly to that class thereof commonly known as pivoted.

Among the main objects in View are to cheapen and simplify the seat,adapt the same for the reception and rigid retention of atooth, and soconstruct said seat as to be capable of being set or disposed atdifierent an gles,whereby the tooth is presented at ditferentinclinations.

Other objects and advantages of the invention will hereinafter appear,and the novel features will be particularly pointed out in the claims.

Referring to the drawings, Figure 1 is a side elevation of abarrow-tooth seat, the same being applied to a bar and holding a tooth,the seat being constructed in accordance with my invention. Fig. 2 is aplan of the same, and Fig. 3 is a perspective in detail of the 5 seat.

Similar letters of reference indicate similar parts in all the figuresof the drawings.

A represents any ordinary harrow beam or bar, which at intervals isprovided with openings A, (see dotted lines, Fig. 2,) arranged in pairs.

B represents the harrow-tooth seat, and the same is formed in a singlecasting, and consists of a plate, preferably of a triangular shape inplan, provided with a transverse vertical groove or seat B, which incontour agrees with the character or form of tooth employed. In thisinstance the tooth is What is commonly known as a combined cultivatorand harrow tooth.

O represents the tooth, which in cross-section is of an angular ordiamond shape, and is formed as a barrow-tooth atone end, as at O, andas a cultivator-tooth, as at C at its opposite end.

Other forms of harrow-teeth may be employed in connection with theherein-described holder, in which instances the contour of the seat B incross-section would be changed to agree therewith. The holder is placedin position upon the side of the beam A, so that its elongated opening Bregisters with one of the pair of transverse openings A in said beam.The other of said pair will then register with one of the series ofnotches B In this instance I have illustrated the central notch as beingin registry with one of the openings A, and the tooth C, being seated insaid holder, will be maintained in a vertical position. By changing theholder so that other than the central notch will be in registry with theopening A the inclination of the tooth will be changed either to aforward or rearward inclination.

D represents abinding-staple, which is of a U shape and of a widthagreeing wit-h the dis tance from one of the notches to the opening B ofthe holder; This staple embraces the shank of the tooth and may have aslight indentation, as D to receive the angle of the shank, or beperfectly round. One branch D of the U-shaped staple is passed throughthe opening B of the holder and the opening A, with which it registers,and serves as a loose pivot, by which the holder is connected to thebeam. The other of the branches 1) of said staple is passed through theopposite opening A in the beam, and is consequently embraced by one ofthe notches B in accordance with the inclination it is desired to givethe holder and tooth.

To the two branches of the staple are applied threaded binding-nuts D bywhich the tooth is firmly bound in its seat.

To change the inclination of the tooth and seat, it is simply necessaryto loosen the nuts D so that the staple may be slightly withdrawn,when,by reason of the elongated open-.

brace the branch D of the staple and the nuts tightened. To reverse thetooth, it is simply necessary to loosen the nuts sufficiently for theWithdrawal of the tooth and its reintroduction. v

I do not limitmy invention to the elongated opening B as I may providesimply'a circular opening, in which instance the staple would have to bewholly Withdrawn to change its in' clination.

Having thus described my invention, what I claim is e 1. Thecombination,with the beam A, having the openings A, of the holder B,having the angular seat B, the elongated opening 13*,

arranged at one side thereof and registering with one of the openings Aand having the notches B arranged at the opposite side of the seat andin the edge of the holder, the tooth C, mounted in the seat, and thebinding-staple D, passed through the openings A B and notch B andprovided with bindingnutsD substantially as specified.

2. The combination,with the beam A, having the openings A, of the holderB, having the angular seat B, the elongated opening B arranged at oneside thereof and registering with one of the openings A and having thenotches B arranged at the opposite side of the. seat and in the edge ofthe holder, the angular tooth C, mounted in the seat, and thebinding-staple D, passed through the openings A B and notch B andprovided with the binding-nuts D and the intermediate notch D forreceiving the angular edge of the tooth, substantially as specified.

In testimony whereof I afilx my signature in presence of two witnesses.

' CLARENCE E. BEMENT.

'itnesses:

A. F. MOLITOR, OSCAR SCHONBYE.

